CVE-2022-30789

Privileged code execution via unchecked client-record offsets

Published May 26, 2022 · Updated Dec 2, 2025

Heap-based buffer overflow in NTFS-3G through 2021.8.22 allows local users to execute privileged code via a crafted NTFS image. ntfs_check_log_client_array derives pointers from untrusted restart-area and client-array offsets without ensuring that each client record remains inside the allocated restart-page buffer. Exploitation requires local access to setuid-root NTFS-3G or physical access to a system configured to process attached NTFS storage, and it corrupts memory in a privileged process.

CVSS severity7.8
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in NTFS-3G through 2021.8.22 allows local users to execute privileged code via a crafted NTFS image. ntfs_check_log_client_array derives pointers from untrusted restart-area and client-array offsets without ensuring that each client record remains inside the allocated restart-page buffer. Exploitation requires local access to setuid-root NTFS-3G or physical access to a system configured to process attached NTFS storage, and it corrupts memory in a privileged process.

The record

CVE
CVE-2022-30789
Published
May 26, 2022
Updated
Dec 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Dec 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.7CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.4SUSECVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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